/Engine/Plugins/Experimental/Mutable/Source/CustomizableObject/Classes/MuCO/CustomizableObject.h
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UMutableMaskOutCache : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
TMap<FString, ...
Materials
TMap<FString, ...
Textures